Rational Numbers: Definition and Examples

Translation: Any rational number is a number that can be expressed as a fraction, where the numerator and denominator are both integers, and the denominator is not zero. For example, 1/2, 3/4, -2/5, and 7 are all rational numbers. Rational numbers can also be expressed as decimals that either terminate (like 0.5 or 0.75) or repeat (like 0.333... or 0.142857142857...). Note that all integers are also rational numbers, since they can be expressed as fractions with a denominator of 1 (e.g., 5 = 5/1).